| 直接写得数. 4× = | - = | 1- = | ÷36= | 8- ×8= |
1÷ × = | 70÷0.01= | 3.5+5.6= | + = | ÷0.5= |
25÷ = | × = |
解:4× =1 ; | - = ; | 1- = ; | ÷36= ; | 8- ×8=7; |
1÷ × =1; | 70÷0.01=7000; | 3.5+5.6=9.1; | + =![]() | ÷0.5= ; |
25÷ =100; | × = . |
分析:根据分数、小数四则运算的计算法则直接进行口算即可.
点评:此题考查的目的是使学生牢固掌握分数、小数四则运算的计算法则,并且能够正确迅速地进行口算,提高口算能力.
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